Canon EOS 400D will not power up replaced both batteries still no go although when a new main battery is inserted and the camera is turned on the green indicator lights and will not turn off until the battery is removed.

Answers :

Generally a fuse blows on these, on the DC/DC converter (psu ) board. This is situated on the front of the camera, fairly easy to get at just involves undoing loads of screws!! The fuse is marked "K", replace or short out with a thin piece of wire. May be caused by changing lenses with the power on, but not sure.\015\012Watch for the charged flash capacitor though!!\015\012Had this problem with mine.\015\012Phil

I have a canon xti and will not power up put two new batterys and nothing.?

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Canon EOS 400D will not power up replaced both batteries still no go although when a new main battery is inserted and the camera is turned on the green indicator lights and will not turn off until the battery is removed.

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